Improvement in reversible knob-latches



@me aan.

*HENRY M. RITTER, OFy CINCINNATI, OHIO.

Letters Patent No. 113,096, dated March 28, 1871.

IMPRovElvn-:n'r INYREvl-:R-SIBLE KNOB-LATCHES.

The Schedule referred to lx1` these Letters Patent and making part of the same. v

I, HENRY M. RITTER, of Cincinnati, county of Hamilton and State of Ohio, have invented certain Improvements in Reversible Latch Locks, of which the following is a specification.

The nature of my invention consists in a sliding plate working on the bottom of the case and carrying a pin, on which the lver is pivoted, and of which the following is a description- The letters and figures on the accompanying draw? ing referring to the same parts on all the plans.

Figure l is a plan of the lock with the parts in working order.

Figure 2 is a plan showing it in position to be reversed.

Figures 3, 4, A5, and 6 are detached parts of the lock out of the case. l

A is a sliding plate,` working on the bottom of the oase G, with a hole at e corresponding to one of the holding-screw holesin the case at e', for the purpose, when the screw is inserted, of preventing the latch from being reversed when in "working order.

The sliding plate A carries on one end a pin, el, on which ispivoted' the lever B, which works around the huh D as al center.

b is a thumb-piece, projecting through the plate or case G, for the purpose of moving the plate A and lever B to allow the latch to he reversed, as shown at fig. 2.

The operation of reversing the latch is performed by pushing back the slide` b, which, by means of the lever attached to the slide A bythe pin d, and turning around the hub D as a center, and held in position by the spring f, forces the latch-head F far enough through the case to allow the latch to he reversed, as shown in fig. 2. The latch-head is then pushed backward, when all the parts resume their proper places, and the hole e,- corresponding with the holding-screw hole e' in-the case, and the screw being inserted, thel catch becomes permanently fixed.

What Ivclaim is y The sliding-plate A, carrying the pin d, in combination with the lever B and latch E, when constructed and operating substantiallyin the manner and for the purposes set forth.

HENRY M. RITTER.

Witnesses:

R. E. MARSH, lL.. S. THOMPSON. 

